Yarn-spinning apparatus.



J. P. OCONNBLL.

YARN SPINNING APPARATUS. APPLICATION FILED AUG. 14, 1909.

949,733.. Patented Feb. 15,1910.

mom 9 GRANAI-I co. Pkom-umocmwuiks. WASHINGTON. a. a

IINITED STATES PATENT FFIQE.

JAMES P. OCONNELL, 0F CROIVIPTON, RHODE ISLAND, ASSIGNOR T0 DRAPER COMPANY,

OF HOPEDALE,

MASSACHUSETTS, A CORPORATION OF MAINE.

YARN-SPINNING APPARATUS.

Specification of Letters Patent.

Patented Feb. 15, 1910.

Application filed August 14, 1909. Serial No. 512,854.

To all whom it may concern:

Be it known that I, JAMES P. OCoNNELL, a citizen of the United States, and resident of Grompton, county of Kent, State of Rhode Island, have invented an Improvement in Yarn-Spinning Apparatus, of which the fol lowing description, in connection with the accompanying drawing, is a specification, like characters on the drawing representing like parts.

This invention relates to apparatus for spinning yarn and it has for its object the production of novel means for controlling the yarn so that excessive ballooning of yarns from adjacent spindles is prevented, and a more nearly uniform tension exerted upon the yarn throughout the winding of a set of bobbins.

In the present embodiment of my invention I provide an annular separator for each spindle, and while the yarn can be readily introduced into the separator the construction of the latter is such that it cooperates with the yarn substantially as if the separator were a continuous ring. This does away with troubles arising from the use of open separators into and out of which the yarns pass as they whirl around the spindles.

It is well known to those familiar with ring-spinning apparatus that at the beginning of the winding the drag of the traveler is greatest and consequently the tension on the yarn is at its maximum, the tension decreasing materially as the yarn mass increases and the traveler revolves more easily upon the ring. This lack of uniformity in the yarn tension is in a large measure cured by my invention, for when the tension is greatest the yarn will touch very lightly upon the cooperating separator. As the tension decreases, however, the ballooning tendency increases and the yarn bears more firmly upon the interior of the separator, the friction thereby produced acting as a tension on the yarn to compensate very materially for the decrease in tension due to the easier movement of the traveler.

The various novel features of my invention will be fully described in the subjoined specification and particularly pointed out in the following claims.

Figure 1 is a front elevation of a portion of a yarn spinning frame, with one embodiment ofniy invention applied thereto, the

ring-rail being shown in its lowest position; Fig. 2 is a transverse section on the line 28, Fig. 1, looking toward the left, but omitting the lifter-rod in order to show parts beyond it; Fig. 3 is a top plan view of several separators and the rail upon which they are mounted.

Referring to Figs. 1 and 2, the deliveryrolls 1, yarn-guides or pig-tails 2; vertically-reciprocating rin -rail 3 having usual rings 4L thereon provided in practice with travelers, (not shown) of usual construction, the rail having attached depending lifter-rods, as 5, Fig. 1; the rocker-arm 6 cooperating with the foot of the lifter-rod; and the spindle-rail 7 and usual rotatable spindles thereon, (indicated at 7*) to receive yarn-receivers or bobbins 8, may be and are all of well known construction and operate in usual manner. The yarns 9 lead from rolls 1 through the pig-tails 2 to the travelers and thence to the bobbins 8, the drag of the travelers on the rings 4 exerting the tension on the yarns.

In accordance with my present invention I provide a series of depending carriers 10, vertically movable having at its lower end a foot 12 adapted to be engaged and lifted by a roller or other stud 13 on the rocker-arm 6 adjacent thereto. Each carrier has an L-shaped head, the lower part let of which projects rearward above the spindle-rail and below the ringrail, Fig. 2, the upright part 15 of the head passing through an apertured car 16, Fig. 2, on a horizontal separator-rail 17. A setscrew 18 holds the rail 17 in adjusted posi tion on the part 15 of each head. The separator-rail 17 is located above the ring-rail, as shown, and has attached to its front face a series of annular separators 19, each separator being made of an open ring of sheet metal, of considerable depth, as shown in Figs. 1 and 2, with its ends overlapping but slightly separated, see Fig. 3, leaving an inlet 20 for the yarn to enter.

If desired the outer end of the separator may be tapered, as at 21, to facilitate the entrance of the yarn, a shank 22 on each separator passing through the rail 17 and being held in place by a nut 23. The normal low point of the separator rail is determined by means of a cam 24, fast on an auxiliary through the spindle-rail and part 11 of the main frame, each carrier shaft 25, the cam cooperating with a toe 26 adj ustably mounted on a stop-rod 27 rigidly attached to and depending from the separator-rail.

As shown in Figs. 1 and 2 when the ringrail is in its lowest position the toe 26 rests on the cam, and the foot 12 of the carrier 10 is some distance above the roll 13, so that as the ring-rail rises some lost motion will be taken up before the separator-rail begins to rise. On the descent of the ring-rail the separatorrail stops before the ring-rail reaches its lowest position, as will be manifest. By this limited relative movement of the ring-rail and separators the latter are positioned to act with the best advantage in preventing undue ballooning as the yarn masses are built up on the bobbins, and by adjusting the separator rail on the heads 14, and correspondingly adjusting the toe 26 on the stop-rod 27, the separatorscan be adjusted as to their position, as may be desirable, up or down, relatively to the ringrail.

When the winding of a set of bobbins is begun very little tension is exerted on the yarns by the separators 19, as the tension due to the travelers at such time tends to prevent ballooning, but as this tension decreases during the building up of the yarn masses the tendency to balloon increases and the yarns press harder upon the inner faces of the separators. The friction or drag thus produced serves to increase the tension on the yarns, and largely compensates for the decrease in tension dependent upon the trav elers, and as a result a more uniform tension is exerted upon the yarns throughout the winding. At the same time the separators prevent adjacent yarns from inter-posing with each other, and as the acting faces of the separators are substantially continuous there is a constant cooperation with the yarns. The entrance 20 affords an easy entrance for the yarn into the separator, when the winding of a fresh set of bobbins is begun, or after piecing up abroken end.

If it is desired to raise the separators, so that they will be farther from the ring-rail when the latter and said separators are moving in unison the rail 17 is first set on the parts 15 of the heads on the carriers 10, and then the toe 26 must be adjusted on the stop rod 27 to engage the cam 24 and hold the separators at the proper elevation when the ring-rail is at the lowest point of its stroke.

When the winding of a set of bobbins is completed the auxiliary shaft 25 is given a quarter turn by means of a handle 28, in the direction of the arrow, Fig. 2, and thereby the separator-rail 17 is lowered temporarily to a point very near the ring-rail, enabling the full bobbins to be dofled conveniently and a fresh set applied to the spindles. Then the shaft 25 is turned back to normal position, the cam 24 acting to reset the separatorrail in position for beginning the winding operation.

Various changes may be made in details of construction and arrangement by those skilled in the art without departing from the spirit and scope of my invention as set forth in the appended claims.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent is 1. In a ring-spinning frame, in combination, a series of rotatable yarn-receivers, a reciprocating ring-rail, a series of annular separators located above it and surrounding the yarn receivers, means to sustain the separators independently of the ring-rail, and mechanism other than the ring-rail, and separate therefrom to begin the ascent of the separators after the ascent of the ring rail begins.

2. In a ring-spinning frame, in combination, a series of rotatable yarn-receivers, a reciprocating ringrail, a series of annular separators located above it and surrounding the yarn-receivers, each separator comprising a deep metallic ring having its ends overlapped and slightly separated to afford an entrance for the yarn, a rail 011 which the separators are fixedly mounted above the ring-rail, normally stationary means to vary the distance between the separators and said ring-rail when at their lowest positions, and mechanism independent of said means and other than the ring-rail to effect reciprocation of the separator-rail.

3. In ring-spinning apparatus, a series of rotatable yarn-receivers, a ring-rail provided with rings for revoluble travelers, fixed guide-eyes above the yarn-receivers, the yarns passing from said eyes to the travelers, and annular separators interposed be tween the guide-eyes and the ring-rail to prevent interference of adjacent yarns and also acting frictionally upon the yarns to increase the tension thereon as the yarn masses build up, combined with means other than the ring-rail to reciprocate the separators.

at. In ring-spinning apparatus, a series of rotatable yarn-receivers, a reciprocating ring-rail, a series of annular separators surrounding the yarn-receivers above the ringrail, means to effect a differential vertical reciprocation of the separators relatively to the ring-rail, a device to effect stoppage of the separators at the bottom of each stroke, and manually operated means to act through said device and permit an additional descent of the separators for dotting.

5. In ring spinning apparatus, a series of rotatable bobbins, a reciprocating ring-rail, a series of separators surrounding the bobbins above the ring-rail, means to adjust the separators vertically with relation to said ring-rail, a rotatably mounted device to normally stop the descent of the separators at a predetermined point and manually rotated to permit them to be lowered for dotting, and means separate from the ringrail to begin the tip-stroke of the separators after the ring-rail begins to rise, the stopping device acting to stop the separators on their down stroke before the ringrail reaches the bottom of its stroke.

6. In ring-spinning apparatus, a series of rotatable bobbins, a ring-rail, means to reciprocate it, a series of separators surrounding the bobbins above the ring-rail, a rail on which the separators are mounted, a lostmotion connection between said rail and the means to reciprocate the ring-rail, to effect a difierential reciprocating movement of said ring and separator rails, and normally stationary means to stop the descent of the separator-rail before the ring-rail reaches the bottom of its stroke.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing Witnesses.

JAMES P. OCONNELL.

WVitnesses JOHN F. FARRELL, ARTHUR JAMES. 

